242849780 has 24 divisors (see below), whose sum is σ = 512581608. Its totient is φ = 96645248.

The previous prime is 242849771. The next prime is 242849797. The reversal of 242849780 is 87948242.

It can be written as a sum of positive squares in 4 ways, for example, as 48972004 + 193877776 = 6998^2 + 13924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26879 + ... + 34758.

It is an arithmetic number, because the mean of its divisors is an integer number (21357567).

Almost surely, 2^242849780 is an apocalyptic number.

242849780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242849780 is an abundant number, since it is smaller than the sum of its proper divisors (269731828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242849780 is a wasteful number, since it uses less digits than its factorization.

242849780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61843 (or 61841 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 242849780 is about 15583.6382144864. The cubic root of 242849780 is about 623.8965318528.

The spelling of 242849780 in words is "two hundred forty-two million, eight hundred forty-nine thousand, seven hundred eighty".